/* -*- c++ -*- */
/*
 * Copyright 2012,2018 Free Software Foundation, Inc.
 *
 * This file is part of GNU Radio
 *
 * GNU Radio is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3, or (at your option)
 * any later version.
 *
 * GNU Radio is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GNU Radio; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */


#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "xor_blk_impl.h"
#include <gnuradio/io_signature.h>

namespace gr {
  namespace blocks {
    template <class T>
    typename xor_blk<T>::sptr xor_blk<T>::make(size_t vlen)
    {
      return gnuradio::get_initial_sptr(new xor_blk_impl<T> (vlen));
    }

    template <class T>
    xor_blk_impl<T> ::xor_blk_impl(size_t vlen)
      : sync_block ("xor_blk",
		       io_signature::make (1, -1, sizeof (T)*vlen),
		       io_signature::make (1,  1, sizeof (T)*vlen)),
      d_vlen(vlen)
    {
    }

    template <class T>
    int
    xor_blk_impl<T> ::work(int noutput_items,
		      gr_vector_const_void_star &input_items,
		      gr_vector_void_star &output_items)
    {
      T *optr = (T *) output_items[0];

      int ninputs = input_items.size ();

      for (size_t i = 0; i < noutput_items*d_vlen; i++){
	T acc = ((T *) input_items[0])[i];
	for (int j = 1; j < ninputs; j++)
	  acc ^= ((T *) input_items[j])[i];

	*optr++ = (T) acc;
      }

      return noutput_items;
    }

template class xor_blk<std::uint8_t>;
template class xor_blk<std::int16_t>;
template class xor_blk<std::int32_t>;
  } /* namespace blocks */
} /* namespace gr */
